Ok I’ve searched all the forums and stuff but still can't find a definite answer. I have an 89 IROC TPI 350, headers and K&N filters, Flowmaster cat back and no cat. What Accel injectors should I order to replace my worn out stock pieces? I don't have an AFPR and don't really plan to get one any time soon. Any help will be greatly appreciated. Thanks.

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1989 Iroc-Z TPI 350 auto 4-spd Removed MAF screens K & N filters, Hedman smog shorties, accel 8mm wires, made for you wire looms, flowmaster american thunder cat back, gutted cat.

 

I would just go with the 24# injectors... stock is all you need unless you get into hefty cams and higher compression. I am simply gettin gmine flowed, blueprinted and matched. Better than brand new ones... it costs 10bux an injector.

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1988 Pontiac Trans Am GTA L98 5.7L, Black on Black with 114,000kms.

Best ET 14.559 @ 95.25MPH
Custom 3" Stainless Exhaust Y-Pipe back (High flow Cat and Flowmaster Mufler)

 

well if u go with 24# injectors you will need a new chip burned since stock injectors are 22#'s

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*89 Trans Am GTA
*Moderator at www.transamgta.com

To hell with the GM vs Ford war. We must unite, as brothers to fight the plague that is overtaking the world...RICE

Tony

 

I just replaced my old 22# injectors with accel 23# injectors and everything is working great. I got rid of them cuz they were leaking. I sold the old ones for $60 so it really only cost me $170 for 8 new injectors. They have been in for about a month and no problems with them at all

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*1989 RS
*Red, Daytona Turbo fiberglass hood, chrome 16x8 IROC wheels
*355 CID
*TPI ported plenum, SLP siamesed runners, Edelbrock high flow intake
*SLP 1 and 3/4 headers with 3 inch catback
*Richmond 3.73, Auburn Posi
*Modded 700-R4, 2800 stall converter
*eibach pro kit and hotchkis sturt tower brace

"There is no way you have a 350 in that car. They are made to have 305's and a 350 wouldnt fit"
-local parts store genius-

 

If you want to upgrade your fuel system for cheep get Ford motorsports they are flo mached from the factory and with them being flow matched you will get more consistant performance from cylinder to cylinder. 24# injectors would not be too much for a semi stock engine.

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89 GTA w/700r4w/stage 2 shift kit,2800 converter, corvette servo, B&M mega shifter, TPIS bigmouth intake, TPIS large tube runners, TPIS 52mm throttle body, Ported Edelbrock centerbolt heads,Accell 30# injectors,holly afpr,GMPP LT4 hotcam,CompCams Pro magnum roller rockers,Edelbrock headers, flowmaster crossflow muffler,MSD 6A, accell coil,150 shot NOS. The new engine is in but I am still having some small problems.

 

I ended up ordering a set of 21 lb/hr accel injectors. I figured they would be better than the 21's for what i'm going to be doing. Thanks for the replys.

 

So if I understand this, If I buy the SVO 24# Injectors. I have to get a new chip burned? How much of difference would it make if I didnt get a new chip? I am asking because of the Formula that I have recently bought. The TPI was torn apart and the injectors were gone. If the 24's are too big or require a new chip, WHERE DO I GET THE FACTORY 22'S????? Anybody know?

 

The factory 22 lb injectors are available except they are really expensive. You can do as i did and order the accel injectors in 21 or 23 lb/hr. THey aren't advertised but are available as a special order through most companies that deal with accel products.

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1989 Iroc-Z TPI 350 auto 4-spd Removed MAF screens K & N filters, Hedman smog shorties, accel 8mm wires, made for you wire looms, flowmaster american thunder cat back, gutted cat.

 

MSD Makes 22lbs INjectors for 56 a piece.

 

Accel's are around $240 a set for all their injectors between 19 lbs and 24 lbs.